Pay-per-call stock quote for MSFT via x402 on Base, settled in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides stock data for Microsoft (MSFT) behind an x402 paywall. It is part of a broader suite of pay-per-request APIs offered by the same provider, spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform share a uniform $0.02 per request pricing model, settled in USDC on the Base network with no API keys, rate limits, or subscriptions required.
The specific endpoint `/api/v1/stocks/MSFT` accepts HTTP POST requests and returns JSON. The x402 challenge confirms the endpoint is live, advertising a max amount of 20,000 base units of USDC (0x8335…on Base), which equals $0.02 given USDC's 6 decimals. Payment is made via the x402 exact scheme to the provider's wallet. The timeout window is 300 seconds.
Documentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of what fields the stock data response contains. The endpoint appears to be one of many on the platform but the stocks category is not even listed on the homepage, suggesting it may be an unlisted or experimental route. Use with the understanding that response schema is undocumented.
Capabilities
Use cases
- —Fetching current Microsoft (MSFT) stock information in an automated agent workflow
- —Integrating pay-per-call stock data into a trading bot without managing API keys
- —Querying stock data with crypto micropayments on Base
Fit
Best for
- —Agents that need on-demand stock data without subscription commitments
- —Developers experimenting with x402 payment-gated APIs
- —Workflows requiring keyless, permissionless access to equity data
Not for
- —High-frequency trading requiring sub-second latency guarantees and documented SLAs
- —Applications needing comprehensive historical stock data or batch queries
- —Users who need well-documented response schemas before integration
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/MSFT \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no OpenAPI spec, no documented request/response schema, no example payloads, and the /docs pages are empty. The stocks endpoint is not even listed on the provider's homepage. This is effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — response format is entirely unknown
- —The /api/v1/stocks/MSFT path is not listed among the provider's advertised endpoints on the homepage
- —All documentation pages (/docs, /pricing, /README) render only a 'Connect wallet' prompt with no content
- —No example responses or field descriptions available for the stock data returned
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/stocks/MSFT
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/MSFT
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The stocks endpoint is not listed among the provider's advertised API categories on the homepagehttps://lowpaymentfee.com